You can pull 80 to 100 off one pretty easy, start 4 days before your weigh in, weigh them full in the morning, then weigh them empty in the evening, now you know about where he is empty3 days before the fair, feed him normal but bucket water once in the morning 4 gallons and once at night 4 gallons (give them 6 scoops of Refresh from Sullivan's each time) 2 days before the same as day 3, you want to weigh the calf both full and empty each day. 1 day left, feed him a half ration of feed and 1 gallon of water with 4 scoops of refresh, in the evening, drench him with 1 quart of water and 8 scoops of refresh, feed 1/4 flake of hay. Hit him with some decelerator (spelling?)
Nothing the day of weigh in, after weigh in, you give 2 gallons water with 4 scoops of refresh, feed half flake of hay, 1 hour later repeat, an hour later repeat. That night hit with decelerator again and feed a half ration of grain, free choice hay, offer a full bucket of water. next morning feed full ration of grain,choice hay, fresh water often.
we went from 1415 to 1330 and had him full and fresh looking the day after weighing.